Great job! Keep up the great work! 
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just curious, is it acceptable to use the forums to promote our individual products?
Yes and no. Out and out promotion (like, “Hey buy my new item” ) isn’t really acceptable. If you post a thread like Justin has which basically says, “Hey, I have a new theme, please let me know what you think.” then that’s ok. However, it must be placed in the Item Discussion category. It’s allowed if you want to talk about the item, not just promote it. Thus, the Item Discussion category. 
Of course if every author started doing this and it started flooding the category then that might change.
jremick is an Envato staff member